[Changes in the activities of proteolytic enzymes of the stomach in peptic ulcer and their diagnostic significance].

A study was made of the activity of proteolytic enzymes of gastric juice (pepsin and gastrixin) and blood (pepsinogen and gastrixinogen) using a modified Babaskin's method. A total of 180 patients with gastrointestinal diseases were entered into the study. Of these, 137 patients had peptic ulcer of the stomach or duodenum. The activity of pepsin, gastrixin, pepsinogen and gastrixinogen was discovered to be elevated during all the periods of peptic ulcer. The routine treatment resulted in the lowering of protease activity.